ConwayLife.com

It's explosive, but apgsearch doesn't use big enough soups to reach critical mass.

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LLS is now Version 4. Changes: This is just a small fix. I had forgotten that git can't see directories unless there is a file inside them. So I deleted the file I put inside the 'solvers' directory to force git to remember it. This meant that people were getting a download in which they had to kno...

On Electric fence the pattern file links below the viewer in the middle of the page are broken. I tried to fix it by changing the pattern name to 'electricfence' instead of 'electricfences', but in the preview it showed that this broke the viewer. Can someone fix it?

I think there is. I wrote a bit about this here (https://www.lesswrong.com/posts/3SG4WbN ... aP3CQ4fgxE) and here (viewtopic.php?p=135539#p137171).

Would it be possible to build a universal constructor based spaceship that travelled at exactly c/2? The way I'm imagining it working is to have a small c/2 puffer laying a fuse. Then the universal constructor builds a very complicated tagalong ('flame'?) that burns up the fuse at 2c/3. When the tag...

LLS has the option to search for still lifes with population constraints within a given box. Unfortunately the step of enforcing the population constraint is very slow (due to my amaturish implementation). But I should be able to churn out the 16, 17 and 18 cases over the next couple of days, if no ...

The orphan with the lowest known density (by Marijn Heule, Christiaan Hartman, Kees Kwekkeboom and Alain Noels) While it was the lowest density at the time, I'll clarify that it isn't the current record holder. As observed here , the pattern American Dream can be used to construct orphans of arbitr...

What is the doubled signal toolkit, and what is it good for?

If we stored the number of times moved east and the number of times moved south then we would just need to compute whether or not we had E^2 < 3S^2, which would allow us to work only with integers and avoid having to calculate sqrt(3). But it still leaves the question of whether we can calculate n^...

LLS is now Version 3. Changes: Significant simplification of the internal logic. Let me know if I broke anything! Improved parsing of SAT solver output. dexter1 does it still work for you? I said above that I had removed support for some SAT solvers, but it would be more correct to sat that LLS now...

- If a person runs the 'lls' script as a standalone script (without 'python' in front), the hashbang in the 'lls' script defaults to python2 on systems with both pythons installed. Better use: #! /usr/bin/python3 or the preferred method: #! /usr/bin/env python3 Done. I'm not sure how this behaves i...

I finally decided to stop waiting around and just release the develop version to master. LLS is now Version 1 and runs on Python 3 (a.k.a. Python). Please let me know if I broke anything. I also updated the LifeWiki tutorial . I'd appreciate it if someone with a Windows machine could update the Wind...

Ilkka Törmä and Ville Salo have added to their gol-agars library a folder of agars that force themselves in the previous generation. So an infinite plane covered with such an agar only ever has one predecessor, the previous generation of that agar. They also found a finite patch of agar with the pro...

Danielle has been searching glider collisions to find a way to make the glider-pair stream from the south west in only 7G. She came up with this result: x = 340, y = 438, rule = B3/S23 obo$b2o$bo150$337bobo$337b2o$338bo47$139bo$137b2o$138b2o$131bo$129bobo $130b2o2$126b3o$128bo$127bo222$334b3o$334bo$...

Is LLS or any other program capable of finding and optimizing a still life with minimal anisotropic rule B/S012345678? See my first 2020 post above and also this handmade partial . Here is some code and a smallish solution. It seems that it might be out of reach to find an optimal solution for the ...

Ahh, that introduces a whole new level of complexity then. It's *possible* but I'd need to make my bigint class a lot more robust. I'm not saying it's a good idea. There's only been a handful of times I've wanted to draw outside the box. Just that there's been even fewer times I've wanted to draw b...

This only affects viewpoint positioning, which is not limited to +/- 1B. I have often thought of raising the limit on editing from +/-1B to +/- 1E18, but it's a pretty big undertaking and may introduce new bugs, so I'm a bit leery. Is this something that people need? If we did this it would probabl...

Is LLS or any other program capable of finding and optimizing a still life with minimal anisotropic rule B/S012345678? See my first 2020 post above and also this handmade partial . This is certainly something you could do with a SAT solver, but LLS isn't advanced enough to set up the search on its ...

Lulu subcontracts their printing to various different printers depending on your location. So these issues will not necessarily be the same for everyone. I think my copy didn't have any of these issues, but I'm not an expert so I wouldn't necessarily notice if the colours had slightly poor saturatio...

And how large is that in scientific notation? It's hard to get a good idea of how large something is when its expressed in recursive equations like that. The reason for using recursive equations or tetration notation is that you cannot effectively write the lifespan using scientific notation. It's ...

Mecejide wrote: ↑

April 8th, 2022, 3:12 pm

Is there really no 2-loafer glider?

No. If I remember correctly I tried all the collisions with two ships using gencols before resorting to three ships.

PC101 wrote: ↑

April 8th, 2022, 8:11 pm

Interesting, how did you determine what is similar and not similar?

The Pearson correlation coefficient.

I did a manual count and got the same results. Congrats to Goldtiger and the Self-Synthesizing Oblique Loopship! I also calculated some correlation coefficients between people's votes and the totals ( as I did last year ): Bellwether: Goldtiger997 Iconoclast: C28 (second year running!) Most similar ...

Could greyship edges be used to create a c/2, or slower, light-speed bubble? If it travelled at c/2 then by definition it wouldn't be a lightspeed bubble. Perhaps you want a bubble that travels at c/2 perpendicular to the stripes in the zebra agar? I believe such a thing is unknown, but we have all...